Harvesting-machine.



No. 720,624. PATENTED FEB. 17, 1903. F. A RYTHER. HARVESTING MACHINE APPLICATION FILED NOV. 13, 1902.

10 MODEL.

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UNITED STATES PATENT OFFICE.

FRANK A. RYTHER, OF CHICAGO, ILLINOIS, ASSIGNOR TO DEERING I-IARX ESTER COMPANY, OF CHICAGO, ILLINOIS.

HARVESTING-MACHINE.

QPECIFICATION formingpart Of Letters Patent NO. 720,624, dated February 17, 1903- Applioation filed November 13, 1902. Serial No. l31,108. (No model.)

To all whom it Wtay concern:

Be it known that LFRANK A. RYTHER,a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Harvesting-Machines, of which the following is a specification.

The objectof my invention is to provide an improved driving-roller for the platform-conveyor of a harvesting-machine, whereby the following desirable qualities are obtained: First, a narrow or shallow platform, thus permitting of short-cutting; second, a lowering of the platform-conveyor relative to the knife of the cutting apparatus, which will thus more readily allow short grain or grass to be delivered upon said platform without clogging on the finger-bar; third, the advantages of a platform-driving roller whose ends are of a smaller diameter than the intermediate portion thereof and which still has the outer elements or those elements on the stubble side of the inner roller lying in the plane of the axes of the two platform-rollers parallel with the axes thereof, thus allowing the said platform-conveyor to be placed near the elevator-conveyers and also avoiding the stretching of the center of the platform-conveyer'in' excess of that of the ends.

Figure 1 is a fragmentary perspective of a portion of a harvester embodying my invention. Fig. 2 is a sectional view taken as indicated in Fig. 1, showing the roller, canvas, and section of platform. Fig. 3 is a fragmentary plan and section showing my improved roller and adjacent parts. Fig. 4 is a sectional view of the roller.

Referring to the drawings, A represents a portion of the Arframe of a harvester; B, the cutting apparatus; 0, the platform; D, the

endless platform-conveyor, and E the two- The piece inner platform-conveyor roller;

novel construction and arrangement of this roller constitute my invention.

0 and c are the front and rear platformslides, respectively, which are secured to the front and rear bars of the platform 0.

The roller E virtually consists of two frusta of cones made hollow, their larger bases abutting and adapted to receive longitudinally a looseIy-fittingsqnare shaft e, the ends e of which are cylindrical and journal in the slides c c. On the cylindrical portion (2' of the rear end of the shaft eis secured the sprocketwheel e which drives the shaft e and roller E thereon. The smaller diameters of the rollers E are "formed with square apertures centrally located and continuous with the in-.

ternal cavity of the said hollow rollers, the said apertures being slightly larger than the square shaft which passes therethrough in order to permit the roller to rotate with its interior contacting constantly the square shaft in the same position relative to the shaft, the

roller and the endless conveyer passing over the said roller. The rear end of the roller E is raised, as shown in Fig. 2, so that the lower elements of the forward cone will be substantially parallel with the bottom of the platform, and thus leave clearance for the endless conveyer to pass between.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a harvester, in combination with a grain-receiving platform, a cutting apparatus and an endless conveyer, a two-part drivingroller, consisting of two conical frusta, the larger bases thereof adjacent, and the geometric axes of the two parts thereof being at a sufficient angle with the line ofv advance of the machine to bring the stubble side of the said two-part roller approximately parallel with the said line of advance, substantially as described.

2. In a harvester, in combination with a grain-receiving platform, a cutting apparatus and an endless conveyor, a two-part drivingroller consisting of two hollow conical frusta,

roller consisting of two hollow conical frusta, the said two hollow conical frusta, substantheir larger bases abutting and the geometric tially as described. axes thereof being at a suflicient angle with the driving-axis of said two-part roller to FRANK RYTHER' 5 bring the stubble side thereof approximately In presence of parallel with the said driving-axis, and a J. C. WARNES,

square shaft adapted to support and drive i T. H. ALFREDS. 

